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| author | Gary S. Robertson <gary.robertson@linaro.org> | 2016-01-20 15:36:59 -0600 |
|---|---|---|
| committer | Gary S. Robertson <gary.robertson@linaro.org> | 2016-01-20 15:36:59 -0600 |
| commit | 370e05d463d66eaada3b4bb9266f019563920eb0 (patch) | |
| tree | 348834a36436338eea1e9f17f1823cae213f92fc /mm/hugetlb.c | |
| parent | f93328edc6d139b9b1b5ed6944f7b80b8699cdf7 (diff) | |
| parent | 906d9eadd3b6698fa6ceb9bcdf41da6aa56d0a24 (diff) | |
Merge tag 'lsk-v4.1-15.12-rt' of http://git.linaro.org/kernel/linux-linaro-stable into linux-linaro-lng-v4.1-rtlinux-lng-preempt-rt-4.1.14-2016.03linux-lng-preempt-rt-4.1.14-2016.02linux-lng-preempt-rt-4.1.14-2016.01linux-linaro-lng-v4.1-rt
LSK RT 15.12 v4.1
Conflicts:
linaro/configs/linaro-base.conf
linaro/configs/preempt-rt.conf
linaro/configs/vexpress64.conf
Diffstat (limited to 'mm/hugetlb.c')
| -rw-r--r-- | mm/hugetlb.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 8c4c1f9f9a9a..a6ff935476e3 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -2897,6 +2897,14 @@ static void unmap_ref_private(struct mm_struct *mm, struct vm_area_struct *vma, continue; /* + * Shared VMAs have their own reserves and do not affect + * MAP_PRIVATE accounting but it is possible that a shared + * VMA is using the same page so check and skip such VMAs. + */ + if (iter_vma->vm_flags & VM_MAYSHARE) + continue; + + /* * Unmap the page from other VMAs without their own reserves. * They get marked to be SIGKILLed if they fault in these * areas. This is because a future no-page fault on this VMA |